DE69123639D1 - Polymer material with thermo-optical effect for a bistable optical device - Google Patents

Polymer material with thermo-optical effect for a bistable optical device

Info

Publication number
DE69123639D1
DE69123639D1 DE69123639T DE69123639T DE69123639D1 DE 69123639 D1 DE69123639 D1 DE 69123639D1 DE 69123639 T DE69123639 T DE 69123639T DE 69123639 T DE69123639 T DE 69123639T DE 69123639 D1 DE69123639 D1 DE 69123639D1
Authority
DE
Germany
Prior art keywords
polymer material
bistable
thermo
incident light
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69123639T
Other languages
German (de)
Other versions
DE69123639T2 (en
Inventor
Duncan James Westland
Vladimir Skarda
Werner Blau
Lorenzo Costa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enichem SpA
Original Assignee
Enichem SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enichem SpA filed Critical Enichem SpA
Publication of DE69123639D1 publication Critical patent/DE69123639D1/en
Application granted granted Critical
Publication of DE69123639T2 publication Critical patent/DE69123639T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0147—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on thermo-optic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F3/00—Optical logic elements; Optical bistable devices
    • G02F3/02—Optical bistable devices
    • G02F3/024—Optical bistable devices based on non-linear elements, e.g. non-linear Fabry-Perot cavity

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Glass Compositions (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Integrated Circuits (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

The present invention provides a bistable optical device in which the active medium is a polymer material of thermo-optical effect inserted into a cavity resonator, preferably a FABRY-PEROT resonance cavity, in said cavity the polymer material transmitting and reflecting an incident light wave with bistable values and values variable according to its thermal state. This latter is varied by the absorption of a fraction of the incident light wave, which transfers heat to the polymer material to generate therein an increase in the transmission of the incident light and a variable refractive index in response to the increase in its temperature, to thus provide a positive response effect which enables the device of the present invention to vary between two bistable states. <IMAGE>
DE69123639T 1990-06-05 1991-06-04 Polymer material with thermo-optical effect for a bistable optical device Expired - Fee Related DE69123639T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02055390A IT1248697B (en) 1990-06-05 1990-06-05 POLYMERIC MATERIAL WITH THERMO-OPTICAL EFFECT FOR AN OPTICAL-BISTABLE DEVICE

Publications (2)

Publication Number Publication Date
DE69123639D1 true DE69123639D1 (en) 1997-01-30
DE69123639T2 DE69123639T2 (en) 1997-06-12

Family

ID=11168686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123639T Expired - Fee Related DE69123639T2 (en) 1990-06-05 1991-06-04 Polymer material with thermo-optical effect for a bistable optical device

Country Status (10)

Country Link
US (1) US5461507A (en)
EP (1) EP0460766B1 (en)
JP (1) JPH04232929A (en)
AT (1) ATE146606T1 (en)
CA (1) CA2043830A1 (en)
DE (1) DE69123639T2 (en)
DK (1) DK0460766T3 (en)
ES (1) ES2096616T3 (en)
GR (1) GR3022599T3 (en)
IT (1) IT1248697B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2727936B2 (en) * 1993-10-22 1998-03-18 日本電気株式会社 Wavelength converter
AU719154B2 (en) * 1996-06-12 2000-05-04 Thin Film Electronics Asa Optical logic element and optical logic device
NO304859B1 (en) * 1997-06-06 1999-02-22 Opticom As Optical logic element and methods for its preparation and optical addressing, respectively, and its use in an optical logic device
EP1109049A1 (en) 1999-12-16 2001-06-20 Corning Incorporated Photothermal optical switch and variable attenuator
US6665109B2 (en) 2000-03-20 2003-12-16 Np Photonics, Inc. Compliant mechanism and method of forming same
US6519074B2 (en) 2000-03-20 2003-02-11 Parvenu, Inc. Electrostatically-actuated tunable optical components using entropic materials
US6747784B2 (en) 2000-03-20 2004-06-08 Np Photonics, Inc. Compliant mechanism and method of forming same
US6678084B2 (en) 2000-03-20 2004-01-13 Np Photonics, Inc. Methods of making mechanisms in which relative locations of elements are maintained during manufacturing
US6597461B1 (en) 2000-03-20 2003-07-22 Parvenu, Inc. Tunable fabry-perot interferometer using entropic materials
US6747775B2 (en) * 2000-03-20 2004-06-08 Np Photonics, Inc. Detunable Fabry-Perot interferometer and an add/drop multiplexer using the same
US6636337B2 (en) 2001-02-09 2003-10-21 Nortel Networks Limited Optical switching device based on stable, non-absorbing optical hard limiters
WO2002065205A2 (en) * 2001-02-09 2002-08-22 Nortel Networks Limited Optical device having nonmonotonic transfer function and applications using same
US6693732B2 (en) 2001-02-09 2004-02-17 Nortel Networks Limited Optical sampler based on stable, non-absorbing optical hard limiters
US6674559B2 (en) 2001-02-09 2004-01-06 Nortel Networks Limited Optical automatic gain control based on stable, non-absorbing optical hard limiters
US6516106B2 (en) 2001-02-09 2003-02-04 Nortel Networks Limited Subtracting analog noise from an optical communication channel using stable, non-absorbing optical hard limiters
US20020154350A1 (en) * 2001-02-09 2002-10-24 Johnson Erik V. Optical logic devices based on stable, non-absorbing optical hard limiters
US20040145741A1 (en) * 2003-01-24 2004-07-29 Honeywell International Inc. Comb etalon fluid analyzer
WO2006020543A2 (en) * 2004-08-09 2006-02-23 Prime Solution, Inc. Rotary fan press
JP5250033B2 (en) 2007-07-31 2013-07-31 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Optical logic device using saturable absorber
US10739513B2 (en) 2018-08-31 2020-08-11 RAB Lighting Inc. Apparatuses and methods for efficiently directing light toward and away from a mounting surface
US10801679B2 (en) 2018-10-08 2020-10-13 RAB Lighting Inc. Apparatuses and methods for assembling luminaires

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8324642D0 (en) * 1983-09-14 1983-10-19 Univ Manchester Liquid crystal storage device
US4917476A (en) * 1985-06-21 1990-04-17 British Aerospace Public Limited Company Thermal imagers using liquid crystal sensing elements
US5022741A (en) * 1985-11-12 1991-06-11 Gte Laboratories Incorporated Optical bistable devices based on bound exciton nonlinearity
US4720175A (en) * 1985-12-02 1988-01-19 The United States Of America As Represented By The Secretary Of The Army Composite logic gate element and multiplexer for optical computing and optical communication
US4782492A (en) * 1986-05-05 1988-11-01 Polaroid Corporation Thermally controllable optical devices and system
GB8615527D0 (en) * 1986-06-25 1986-07-30 Secr Defence Liquid crystal polymers
GB2197495B (en) * 1986-10-24 1990-08-15 Plessey Co Plc Bistable optical device

Also Published As

Publication number Publication date
EP0460766A2 (en) 1991-12-11
CA2043830A1 (en) 1991-12-06
DK0460766T3 (en) 1997-04-28
EP0460766B1 (en) 1996-12-18
IT9020553A0 (en) 1990-06-05
JPH04232929A (en) 1992-08-21
IT1248697B (en) 1995-01-26
US5461507A (en) 1995-10-24
ES2096616T3 (en) 1997-03-16
GR3022599T3 (en) 1997-05-31
IT9020553A1 (en) 1991-12-05
EP0460766A3 (en) 1992-05-13
DE69123639T2 (en) 1997-06-12
ATE146606T1 (en) 1997-01-15

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee